Name: ____________________________________________ Date: __________________ Period: _____
Introduction to Biology
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•
Biology: _______________________________________________________________________
o
Bio-: _____________________________
o
-logy: _____________________________
Living things are called ______________________________.
There are 21 organisms in the graphic. Can you find
them?
1. Arrange them in 5 groups.
2. Name each group.
6 Kingdoms of Life:
1. __________________________________
2. __________________________________
3. __________________________________
4. __________________________________
5. __________________________________
6. __________________________________
What are some traits that ALL living things share?
1. All species ______________________.
2. All living things _________________ and ______________________.
3. All living things obtain and use _______________________.
4. All living things are made up of one or more _______________________.
5. All living things ________________ to ____________________.
6. All living things maintain an ____________________ ____________________
(______________________________).
Trait #1: All species reproduce.

Asexual Reproduction: _____________ parent(s) creates a new organism with
______________________ genetic information (NO ______________ or _______________)
o
A-: _____________
o
–sexual: involving ____________ _____________________
Name: ____________________________________________ Date: __________________ Period: _____
o
Ex: one bacteria can split into two using binary fission, a hydra “buds” to make another, a
starfish cut in half will regenerate into two starfish

Sexual Reproduction: ___________ parents create a new organism by ___________________ their
genetic material (usually via ______________ and ______________)
o

Ex: Sea urchins release sperm and egg into the water.
With asexual reproduction offspring will inherit the _______________ _____________ traits as
their parents.

With sexual reproduction, offspring will _______________ from their parents in some ways
because they will be inheriting _____________ from both the ______________ and ____________.
Trait #2: All living things grow and develop.

___________________ is getting larger as cells divide to form more cells.

____________________ is change in form or function.
Trait #3: All living things obtain and use energy.

The ___________ is the primary source of energy for almost everything on Earth.

Autotroph: An organism that uses _______________ or ____________________ to make its own
food (_______________________________).

Heterotroph: An organism that ______________ other organisms to obtain energy.
o
Energy from food must be ___________________ ________________ during chemical
reactions into a form that cells can use (________________ ________________________).
Trait #4: All living things are made of one or more cells.

Just like a house is made of bricks, ______________________ are made of _________________.

Unicellular: _____________________-celled organism

o
Uni-: __________________
o
-cellular: made up of ______________________
o
Ex.: __________________________ and ___________________________
Multicellular: organism made up of __________ or ______________ cells
o
Multi-: ______________________________________
o
Ex.: ____________________, _________________, _________________]
Name: ____________________________________________ Date: __________________ Period: _____
Trait #5: All living things respond to stimuli.

A stimulus is anything that causes a ______________________ in an organism.
o
Stimuli can be _________________ or _____________________.
o
Ex: A pupil gets _________________ in bright light.
What is the stimulus?
What is the response?
How is this helpful?
o
Ex: A venus fly trap ________________ when a fly lands on it.
What is the stimulus?
What is the response?
How is this helpful?
Trait #6: All living things maintain an internal balance of things like water, sugar, temperature
(HOMEOSTASIS).

If body temperature drops too low, _____________________ produces ______________ to warm
you up.

If temperature is too hot, _______________________ cools you down.
1. Because no organism lives forever, __________ is necessary in order to prevent extinction of a
species.
o
Development
o
Growth
o
Homeostasis
o
reproduction
Name: ____________________________________________ Date: __________________ Period: _____
Levels of Organization

___________________________

___________________________

___________________________

___________________________

___________________________

___________________________

___________________________

___________________________
Smallest
All the organelles
function inside the
cell just like the
organs function
within our bodies
Largest
1. Atoms
In Atoms, the outer shell of electrons, called ________________________________, likes to be
full with 8 electrons. But ________________ only has 6.
2. Molecules
Two types of atoms can ________________________
to form a _________________________ so that every
atom has full valence of electrons.
3. Organelles
Organelles make up ________________ and all have a very _____________________________.
Neuron
Cell
4. Cells
Cells are ___________________________________________________________________.
Example: Neuron cell
Name: ____________________________________________ Date: __________________ Period: _____
5. Tissues
Tissues are
6. Organs
Organs are
7. Organ Systems are organs that
__________________________________________ .
Example:
8. Organism
Organism is
Levels of Organization (Organisms)
Organism are grouped into the following categories:

__________________________________

__________________________________

__________________________________

__________________________________
Smallest
Largest
Name: ____________________________________________ Date: __________________ Period: _____
1. Population
Population is a group of organism of the _________________________________________
living in the __________________________ at the ________________________________.
2. Community
Community is
3. Ecosystem
Ecosystems are
o Biotic :
Examples:
o Abiotic:
Examples:
4. Biosphere
Biosphere is the
Questions:
1. Which of these would form first during the development of a complex multicellular organism
such as an animal? A. Cells
B. Organ
C. Tissue
D. Organ System
2. The picture shows a group of muscle cells in the heart. All of these
muscle cells beat in unison to push blood in timing with the rhythm of
the heart, at the direction of nearby nerve cells.
These muscle cells could be best called a _____________________.
Name: ____________________________________________ Date: __________________ Period: _____
Questions:
3. Based on the organization of living things, how could we
classify the pollen produced by this flower?
a. An organ that is part of a system
b. A group of cells that form an organ
c. Begins as a cell and is part of a system without
organs
d. Begins as a cell, come from an organ, is part of a
system